Discharge, but not an STD?

So a few days after my first sexual experience, about a week, I noticed white discharge once (which I have never had before, ever) and tingly groin area for a few days. I got very nervous, but I was very busy with work so I couldn't get anything tested.

After a few days the tingly groin went away, and I totally forgot about it. A few weeks later I got blisters on my groin area... I got a physical a few months later and ask they check for STDs. The tests came back negative, however my doctor gave me antibiotics for chlamydia... Why would she do that if i was negative?

Also I took 2 Oraquick HIV tests, and they both were negative.

Any idea what I have? I'm pretty sure she only sent tests for Ghonnorea and Chlamidya